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AAOS A&P Chapter 1
Terms
79
Anatomy
Post-Graduate
09/20/2016

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Term
Abduction
Definition
Motion of a limb away from the midline
Term
Acids
Definition
Electrolytes that dissociate in water to release hydrogen ions
Term
Activation Energy
Definition
The amount of energy required to start a reaction
Term
Adduction
Definition
Motion of a limb toward the midline
Term
Anatomic Planes
Definition
Imaginary surfaces used as references to identify parts of the body
Term
Anatomic Position
Definition
The position of reference in which the patient stands facing you, arms at side, with the palms of the hands forward
Term
Anatomy
Definition
The study of the structure of an organism and its parts
Term
Anterior
Definition
The front surface of the body; The side facing forward in the anatomic position
Term
atomic number
Definition
A whole number representing the number of positively charged protons in the nucleus of an atom
Term
Atomic Weight
Definition
The total number of protons and neutrons in the nucleus of an atom
Term
Atoms
Definition
The smallest complete units of an element that have the element's properties
Term
Bases
Definition
Electrolytes that release ions that bond with hydrogen ions
Term
Carbohydrates
Definition
Substances (including sugars and starches) hat provide much of the energy required y the body's cells, as well as helping to build cell membranes.
Term
Catalysts
Definition
Atoms or molecules that can change the rate of a reaction without being consumed during the process
Term
Cation
Definition
An ion that contains an overall positive charge
Term
Chemistry
Definition
The study of the composition of matter and changes in its composition
Term
Compounds
Definition
Molecules made up of different bonded atoms
Term
Covalent Bond
Definition
A chemical bond where atoms complete their outer electron shells by sharing electrons
Term
Decomposition Reaction
Definition
A reaction that occurs when bonds with a reactant molecule break, forming simpler atoms, molecules, or ions.
Term
Distal
Definition
Farther from the trunk or nearer to the end of an extremity
Term
Dorsal
Definition
The posterior surface of the body including the back of the hand
Term
Electrolytes
Definition
Salt or acid substances that become ionic conductors when dissolved in a solvent (ie water); chemicals dissolved in the blood
Term
Electrons
Definition
Single, negatively charged particles that revolve around the nucleus of an atom
Term
Elements
Definition
Fundamental substances, such as carbon, hydrogen, and oxygen that compose matter.
Term
Enzymes
Definition
Substances designed to speed up the rate of specific biochemical reactions
Term
Exchange Reaction
Definition
A chemical reaction where parts of the reacting molecules are shuffled around to produce new products
Term
Extension
Definition
The bending of a joint resulting in the distal segment moving away from the proximal segment. (Straightening of a limb)
Term
External Rotation
Definition
Rotating an extremity at its joint away from the midline
Term
Flexion
Definition
The bending of a joint resulting in the distal segment moving toward the proximal segment
Term
Fowler Position
Definition
The position in which the patient s sitting up with the knees bent or straight
Term
Frontal/Coronal Plane
Definition
An imaginary plane dividing the body into anterior and posterior halves
Term
Gross Anatomy
Definition
The study of body parts that are visible to the naked eye
Term
Homeostasis
Definition
A tendency to consistency or stability in the body's internal environment
Term
Hydrogen Bond
Definition
The attraction of the positive hydrogen end of a polar molecule to the negative nitrogen or oxygen end of another polar molecule
Term
Hyperextension
Definition
When a body part is extended to the maximum level or beyond the normal range of motion
Term
Hyperflexion
Definition
When a body part is flexed to the maximum level or beyond the normal range of motion
Term
Inferior
Definition
Below a body part or nearer to the feet
Term
Inorganic
Definition
Not having both carbon and hydrogen atoms
Term
Internal Rotation
Definition
Rotating the segment of the extremity distal to the joint toward the midline
Term
Ions
Definition
Atoms that either gain or lose electrons
Term
Isotope
Definition
One of two (or more) forms of an element having the same number of protons and electrons, but different numbers of neutrons; they may or may not be radioactive.
Term
Lateral
Definition
Parts of the body that lie farther from the midline
Term
Lipids
Definition
Fat-like substances (cholesterol and phospholipids) and oils that supply energy for body processes and building of certain structures
Term
Medial
Definition
Parts of the body that lie closer to the midline; also called inner structures
Term
Microscopic Anatomy
Definition
The study of tissue structure and/or cellular structure or organization, often visible only through a microscope
Term
Midaxillary Line
Definition
An imaginary line drawn through the midportion of the axilla to the waist that is parallel to the midline
Term
Midclavicular Line
Definition
An imaginary line that is drawn through the midpoint of the clavicle that is parallel to the midline
Term
Midsaggital Plane/Midline
Definition
An imaginary vertical line drawn from the middle of the forehead through the nose and the navel to the floor
Term
Molecule
Definition
Particles made up of two or more joined atoms
Term
Neutrons
Definition
Uncharged or "neutral" particles in the nucleus of an atom
Term
Nucleic Acids
Definition
Large organic molecules, or macromolecules, that carry genetic information or form structures within cells, and include DNA and RNA
Term
Organic
Definition
Having both carbon and hydrogen atoms
Term
Pathophysiology
Definition
The study of body functions of a living organism in an abnormal state
Term
Peptides
Definition
Protein molecules consisting of amino acids held together by peptide bonds
Term
pH
Definition
The measure of acidity or alkalinity of a solution
Term
Physiology
Definition
The study of the body functions of the living organism
Term
Polar Molecule
Definition
A molecule that uses a covalent bond in which electrons are not shared equally; this results in a shape that has an uneven distribution of charges
Term
Posterior
Definition
The back surface of the body
Term
Prone
Definition
Lying flat with the face down
Term
Proteins
Definition
Created from amino acids, they include enzymes, plasma proteins, muscle components, hormones, and antibodies
Term
Protons
Definition
Single, positively charged particles inside the nucleus of an atom
Term
Proximal
Definition
Closer to the trunk
Term
Radioisotopes/Radioactive Isotopes/Radionuclides
Definition
Atoms with unstable nuclei
Term
Range of Motion (ROM)
Definition
The arc of movement of an extremity or joint
Term
Recovery Position/Left Lateral Recumbent Position
Definition
Patient on the left side of the body to facilitate drainage of discharge from the mouth/nares
Term
Recumbent
Definition
Any position in which the patient is lying down or leaning back
Term
Regional/Topographic Anatomy
Definition
Study of anatomy associated with a particular body region
Term
Reversible Reaction
Definition
A chemical reaction where the products of the reaction can change back into the reactants they originally were
Term
Sagittal/Lateral Plane
Definition
Divides the body into left and right parts
Term
Steroid
Definition
Molecules with four connected rings of carbon atoms. (Cholesterol, estrogen, progesterone, testosterone, cortisol, and estradiolol)
Term
Superior
Definition
Above a body part or nearer to the head
Term
Supination
Definition
Turning the palms upward
Term
Supine Position
Definition
The position in which the body is facing up
Term
Synthesis Reaction
Definition
A reaction that occurs when two or more reactants (atoms) bond to form a more complex product or structure
Term
Systemic Anatomy
Definition
The study of anatomy associated with a particular system
Term
Topographic Anatomy
Definition
The study of anatomy associated with a particular body region
Term
Transverse/Axial Plane
Definition
An imaginary line where the body is cut into top and bottom parts
Term
Trendelenburg Position
Definition
The position in which the body is supine with the head lower than the feet
Term
Ventral
Definition
The anterior (back) surface of the body
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